bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 140 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0663-dts-bcm2711-add-High-Peripheral-mode-overlay.patch b/target/linux/bcm27xx/patches-5.4/950-0663-dts-bcm2711-add-High-Peripheral-mode-overlay.patch
new file mode 100644
index 0000000000..e24f5de000
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0663-dts-bcm2711-add-High-Peripheral-mode-overlay.patch
@@ -0,0 +1,140 @@
+From f6d6731d8e896ab029466547dfa66d91a9a6b73a Mon Sep 17 00:00:00 2001
+From: Hristo Venev <hristo@venev.name>
+Date: Wed, 22 Apr 2020 16:34:59 +0300
+Subject: [PATCH] dts: bcm2711: add "High Peripheral" mode overlay
+
+The following addresses change:
+
+ - 0xfc00_0000 -> 0x4_7c00_0000
+ - 0xff80_0000 -> 0x4_c000_0000
+
+The range 0xfc00_0000-0xffff_ffff becomes available as system RAM on
+devices with >= 4 GiB of RAM. Firmware should initialize the memory node
+appropriately.
+
+Signed-off-by: Hristo Venev <hristo@venev.name>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi            |  2 +-
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  6 ++
+ .../boot/dts/overlays/highperi-overlay.dts    | 64 +++++++++++++++++++
+ arch/arm/boot/dts/overlays/overlay_map.dts    |  4 ++
+ 5 files changed, 76 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm/boot/dts/overlays/highperi-overlay.dts
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -16,7 +16,7 @@
+ 		compatible = "arm,cortex-a72-pmu", "arm,cortex-a15-pmu";
+ 	};
+ 
+-	v3dbus {
++	v3dbus: v3dbus {
+ 		compatible = "simple-bus";
+ 		#address-cells = <1>;
+ 		#size-cells = <2>;
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -64,6 +64,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	hifiberry-dacplushd.dtbo \
+ 	hifiberry-digi.dtbo \
+ 	hifiberry-digi-pro.dtbo \
++	highperi.dtbo \
+ 	hy28a.dtbo \
+ 	hy28b.dtbo \
+ 	hy28b-2017.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1019,6 +1019,12 @@ Load:   dtoverlay=hifiberry-digi-pro
+ Params: <None>
+ 
+ 
++Name:   highperi
++Info:   Enables "High Peripheral" mode
++Load:   dtoverlay=highperi
++Params: <None>
++
++
+ Name:   hy28a
+ Info:   HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics
+         Default values match Texy's display shield
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/highperi-overlay.dts
+@@ -0,0 +1,64 @@
++/*
++ * highperi.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&soc>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <1>;
++			ranges = <0x7c000000  0x4 0x7c000000  0x04000000>,
++				 <0x40000000  0x4 0xc0000000  0x00800000>;
++		};
++	};
++
++	fragment@1 {
++		target = <&scb>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <2>;
++			#size-cells = <2>;
++			ranges = <0x0 0x7c000000  0x4 0x7c000000  0x0 0x04000000>,
++				 <0x0 0x40000000  0x4 0xc0000000  0x0 0x00800000>,
++				 <0x6 0x00000000  0x6 0x00000000  0x0 0x40000000>,
++				 <0x0 0x00000000  0x0 0x00000000  0x1 0x00000000>;
++			dma-ranges = <0x0 0x00000000  0x0 0x00000000  0x2 0x00000000>;
++		};
++	};
++
++	fragment@2 {
++		target = <&v3dbus>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <2>;
++			ranges = <0x7c500000  0x4 0x7c500000  0x0 0x03300000>,
++				 <0x40000000  0x4 0xc0000000  0x0 0x00800000>;
++		};
++	};
++
++	fragment@3 {
++		target = <&emmc2bus>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <2>;
++			#size-cells = <1>;
++			ranges = <0x0 0x7e000000  0x4 0x7e000000  0x01800000>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/overlays/overlay_map.dts
++++ b/arch/arm/boot/dts/overlays/overlay_map.dts
+@@ -5,6 +5,10 @@
+ 		deprecated = "use i2c-sensor,bmp085";
+ 	};
+ 
++	highperi {
++		bcm2711;
++	};
++
+ 	i2c0-bcm2708 {
+ 		deprecated = "use i2c0";
+ 	};